<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb>
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索框区域 -->
      <el-row :gutter="20">
        <el-col :span="12">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="gotoAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 表格数据渲染 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格"
          prop="goods_price"
          width="105px"
        ></el-table-column>
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="100px"
        ></el-table-column>
        <el-table-column label="添加时间" prop="add_time" width="220px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <el-button type="primary" size="mini">编辑</el-button>
            <el-button
              type="danger"
              size="mini"
              @click="removeGoods(scope.row.goods_id)"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页功能 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[10, 20, 30, 40]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询数据所需传递的参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10,
      },
      // 商品数据列表
      goodslist: [],
      // 总数据条数
      total: 0,
    };
  },
  created() {
    // 获取商品数据列表
    this.getGoodsList();
  },
  methods: {
    // 获取商品数据列表
    async getGoodsList() {
      const { data: res } = await this.$axios.get("goods", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取商品数据列表失败");
      }
      // this.$message.success("获取商品数据成功");
      console.log(res.data);
      // 赋值
      this.goodslist = res.data.goods;
      this.total = res.data.total;
    },

    // 当页面size发生改变,会触发这个函数
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    // 当当前页面发生改变，则会触发这个函数
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum;
      this.getGoodsList();
    },
    // 删除商品
    async removeGoods(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该数据, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      if (confirmResult !== "confirm") {
        // 返回提示信息
       return this.$message.info("已取消删除操作");
      }
      // 确定要删除数据
      const { data: res } = await this.$axios.delete("goods/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除数据失败");
      }
      this.$message.success("删除数据成功");
      // 重新渲染一下数据
      this.getGoodsList();
    },
    // 通过路由导向跳转到添加商品页面
    gotoAddPage(){
      this.$router.push('/goods/add');
    }
  },
};
</script>

<style scope>
</style>